Let x = number of white marbles and y = number of yellow marbles.
x + y = 57 => x = 57 - y
Also, x = 3 + 5y
Substitute x for y.
57 - y = 3 + 5y => 57 - 3 = 54 = 6y
So, y = 9
Since x (our answer) = 3 + 5 (9),
x = 48.
Check: 48 + 9 = 57 total
Answer: 3.2x = 12.8
Step-by-step explanation: Lets have x equal each box that weighs 3.2 pounds.
The expression: 3.2x = 12.8 represents that each box, x of candies will weigh 3.2 pounds and the total weight of the candies will equal 12.8 pounds of candy.
Additional: There are 4 boxes of candy, 12.8 divided by 3.2 = 4
Answer:
20/3 pounds of coffee that costs $12 per pound and 40/3 pounds of coffee that costs $9 per pound are required
Step-by-step explanation:
Let x be the amount of coffee that costs $12 per pound
Cost of x amount of this type coffee = 12x
We are supposed to find How much of each should be used to produce 20 pounds of the new blend that costs $10 per pound
So, Amount of coffee required that costs $9 per pound = 20-x
Cost of (20-x) amount of this type of coffee = 9(20-x)
So, 
Amount of coffee that costs $12 per pound required is
Amount of coffee that costs $9 per pound required = 20-x=
Hence 20/3 pounds of coffee that costs $12 per pound and 40/3 pounds of coffee that costs $9 per pound are required
Answer: The answer C the one in the botton the one that has the arrow Up
Step-by-step explanation:
Answer:
Step-by-step explanation:
cheese monkey nut